fix(nixos): order homepage sections

configs/nixos/modules/services/homepage.nix

@@ -56,12 +56,37 @@ let
 
   orderedTabs = tabOrder ++ lib.filter (tab: !lib.elem tab tabOrder) (lib.attrNames entriesByTab);
 
+  sectionOrderByTab = {
+    Apps = [
+      "Media"
+      "Files"
+      "Other"
+    ];
+    Download = [
+      "Library Managers"
+      "Other Utilities"
+      "Download Clients"
+    ];
+    System = [
+      "Monitoring"
+      "Network"
+      "Machines"
+      "Docker"
+    ];
+  };
+
+  orderedSections = tab: sections:
+    let
+      sectionOrder = sectionOrderByTab.${tab} or [ ];
+    in
+    sectionOrder ++ lib.filter (section: !lib.elem section sectionOrder) (lib.attrNames sections);
+
   mkTab = tab:
     let
       sections = entriesByTab.${tab};
     in
     {
-      ${tab} = map (section: { ${section} = sections.${section}; }) (lib.attrNames sections);
+      ${tab} = map (section: { ${section} = sections.${section}; }) (orderedSections tab sections);
     };
 
   homepageServices = map mkTab (lib.filter (tab: lib.hasAttr tab entriesByTab) orderedTabs);